LyX 2.3.4 - Freezing cursor

[Pavel Sanda]

On Fri, Jan 31, 2020 at 09:18:29AM +0000, F M Salter wrote:
>     Cursor freezes after alt-I H D etc  Recovery is by clicking with the
> mouse when the cursor unfreezes and  the cursor can be moved to correct
> position,

Can you be more precise about the steps you are doing?
When I hit alt+i menu opens. Now what?

If I press 2x escape to get from menu listing and menu itself
cursor looks normal here.

Pavel